This video is research data from the 2015 Imperial Oil Science Technology Engineering and Mathematics (IOSTEM) Academy. The research focus is on how computer programming and robotics support arithmetic thinking.
In this video clip, the pink team is programming their robot to move into the building. This requires manipulating one block of EV3 code to move the wheels a specified number of rotations. The girls on the pink team start out with a guess of 0.4 rotations to move the robot into the first corridor of the building. After testing how far the robot moved and observing that the robot needed to move a larger distance, The Krista prompts the girls by asking what they should try next. Celina suggests they try 0.5. The small incremental change was still not enough, so Krista suggests they try 2. Two rotations were too large, which prompted the question, “What is between 0.5 and 2?” Celina responded ‘5.’ Krista then drew a number line on the whiteboard and asked again, “What is between 0.5 and 2?” “Oh!” Celina exclaimed, “1.8.”
© Dr. Krista Francis, Werklund School of Education, University of Calgary